Which requirement is it that you are looking for? I know the rules for sponsoring family visitors changed this year to state that the family member you are visiting must be settled in the UK (i.e. not subject to immigration control) in order for them to sponsor you as a family visitor.
Therefore anyone who does not have ILR, would need to sponsor their family member as a general visitor instead.
See Page 3 under the following link:
http://www.ukba.homeoffice.gov.uk/sitec ... sitors.pdf
Family Visitor
The family members you are visiting must be permanently settled or have asylum/humanitarian protection status in the UK. They must also be related to you in one of the following ways:
- Spouse, civil partner, father, mother, son, daughter, brother or sister;
- Grandfather, grandmother, grandson or granddaughter;
- Spouse or civil partner’s father, mother, brother or sister;
- Son or daughter’s spouse or civil partner;
- Stepfather, stepmother, stepson, stepdaughter, stepbrother or stepsister; or
- Unmarried partner where the couple have been in a relationship akin to marriage or civil partnership for at least the two years before the day the application is made and the relationship is genuine and subsisting
If you are not related to the person you are visiting in one of the specified ways listed above or if they are not permanently settled or have asylum/humanitarian protection in the UK, then you should apply as a general visitor and complete VAF1A.